#ifndef SALES_H
#define SALES_H

namespace SALES{

    const int QUARTERS = 4;
    struct Sales{
        double sales[QUARTERS];
        double average;
        double max;
        double min;
    };

    void setSales(Sales & s);

    void setSales(Sales & s, const double ar[], int n);

    void showSales(Sales & s);

}

#endif